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Submission #: 2002-03-0456 �m <br /> Gasoline <br /> Batch QC report <br /> STL San Francisco <br /> Test Method: 8015M Prep Method: 5030 1220 Quarry Lane <br /> Pleasanton,CA 94566 <br /> Laboratory Control Spike(LCS/LCSD) Water QC Batch#2002/03/25-01.05 Tel 925 484 1919 <br /> LCS: 2002/03/25-01.05-003 Extracted: 03/25/2002 08:03 Analyzed: 03/25/2002 08:03 Fax 925 484 1096 <br /> www.sti-inc.com <br /> LCSD: 2002/03/25-01.05-004 Extracted: 03/25/2002 08:35 Analyzed: 03/25/2002 08:35 www.chromalab.com <br /> CA DHS ELAP#1094 <br /> Compound Conc.[ug/L] Exp.Conc.[ug/Ll Recovery RPD Ctrl.Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recover RPD LCS LCSD <br /> Gasoline 443 442 500 500 88.6 88.4 0.2 75-125 20 <br /> Surrogate(s) <br /> 4-Bromofluorobenzene 475 487 500 500 95.0 97.4 50-150 <br /> STL San Francisco is a part of Severn Trent Laboratories,Inc. Page 6 of 6 <br />